The Pressure of QCD at finite temperatures and chemical potentials

May, 2003
34 pages
Published in:
  • Phys.Rev.D 68 (2003) 054017
e-Print:
Report number:
  • HIP-2003-30-TH

Citations per year

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Abstract:
The perturbative expansion of the pressure of hot QCD is computed here to order g^6ln(g) in the presence of finite quark chemical potentials. In this process all two- and three-loop one-particle irreducible vacuum diagrams of the theory are evaluated at arbitrary T and mu, and these results are then used to analytically verify the outcome of an old order g^4 calculation of Freedman and McLerran for the zero-temperature pressure. The results for the pressure and the different quark number susceptibilities at high T are compared with recent lattice simulations showing excellent agreement especially for the chemical potential dependent part of the pressure.
  • 11.10.Wx
  • 12.38.Mh
  • quantum chromodynamics
  • finite temperature
  • potential: chemical
  • pressure
  • perturbation theory
  • Feynman graph: higher-order
  • lattice field theory: susceptibility
  • dimensional reduction